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UNITED STATES PATENT OFFICE.

WILLIAM BRAMHILL, OF NEW YORK, N. Y.

CHAIR BOTTOM AND BACK.

Specification forming part of Letters Patent N0. 51,132, dated November28, 1865.

To all whom it may concern:

Be it known that I, WILLIAM BRAMHILL, of the city, county, and State ofNew York, have invented a new and useful Improvement in Chairs and otherArticles ot' Furniture for Sitting and Recumbent Purposes; and I dohereby declare that the following is a full, clear, and exactdescription of the same, reference being had to theaccompanyingdrawings, in which- Figure l is a plan of a chair-bottomconstructed according to my invention. Fig. 2 is a vertical section ofthe same.

Similar letters of reference indicate correspending parts in bothfigures.

This invention consists in the employment of soft vulcanized sheetindia-rubber or indiarubber cloth in the bottoms and backs of' chairsand other seats and articles of furniture for sitting and recumbentpurposes, such as stools, sofas, lounges, andthe seats of publicconveyances. This material, beingtlexible and elast-ic, possesses allthe advantages of a cushion in adaptingitself to the shapeof theperson,While it is more durable, more easily kept clean and t'ree from vermin,and permits free ventilation to the person and clothing.

The vulcanized india-rubber or india-rubber cloth is to be stretched orkept extended to form the seat-bottom or back on a frame ot'wood orother suitable sti material. When sheet india-rubber without cloth isused the perforations may be formed by punching or cutting thevulcanized sheet, or the sheet-rubber may be manufactured with suitableperforations;

but when vulcanized india-rubber cloth is used the perforations will bepunched or cut from the cloth at'ter its Inanutacture,in the usualmanner.

The vulcanized india-rubber or indiarubber cloth Inay be attached to theframe ot' wood or other rigid material in various ways; but I considerthat mode which I have represented as well suited as any other, and Iwill proceed i to describe it.

A is the inner frame, of wood, ot' suitable 'orm, over the edges ofwhich the pieces of perforated sheet india-rubber or india-rubber clothI3, of suftciently large size, are stretched, and to which it is nailedor otherwise suitably fastened. Around the overlapping margin a a ofthepiece B are placed strips C C, ot' wood, which are attached to the frameA by means ot' screws b b or nails, and which are thereby made to assistin securing the margin a a to the frame A, or which may be made tosecure the said margin to the said frame without any other aid.

What I claim as my invention, and desire to secure by Letters Patent, is

The employment of perforated elastic vulcanized indiarubber or indiarubber cloth, substantially as herein described, in the bottoms andbacks ot' chairs and other articles of furniture for sitting andrecumbent purposes.

VILLIAM BRAMHILL.

Witnesses:

J. W. CooMBs, G. W. REED.

